Coating-machine.



Patentd May 6,1902;

G. A. BREEZE. GATING MACHINE. (Application med .my 12, 1901;)

2 Sheets-Sheet I.

(NQ Model.)

` INVENTOR JITTORNEYS.

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` No. 69mm;

. Pafented May 6, [902. G. A. BREEZE. comms MAcHmE.`

(Applieation led July 12, 1901.)

2 Sheets-Sheet 2.

(No Model.)

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TN: Norms PETERS co. PNoYaLlTNo.. wAsHwu'run. ny c,

Nrrnb STATESN PATENT OFFICE.

GEORGE A. BREEZE, OF` NEWTARK, NEW JERSEY, ASSIGNOR TO THE WHITEHEAD du HOAG COMPANY, OF NEWARK, NENV JERSEY, A

CORPORATION OF NEW JERSEY.

COATING-WIACHINE.

SPECIFCATION forming part of Letters Patent No. 699,612, dated May 6, 1902. Application filed July l2, 1901. Serial No. 67,963. (No modelo To all whom zit www; concern.-

Be it known that I, GEORGE A. BREEZE, of Newark, in the county of Essex, in the State of New Jersey, have invented new and useful Improvements in Coating-Machines, of which the following, taken in connection with the accompanying drawings, is a full, clear, and exact description.

This invention relates to improvements in coating-machines, and refers more particularlyto that class of machineswhich is adapted to coat the surface or surfaces of paper, fabric, or other thin materials either in sheets or continuous sheets or rolls.

The object of this invention is to produce means, operating in conjunction with suitable feeding and coating mechanism, whereby the thickness of 'material adhering to the coating-roller may be uniformly gaged before being applied to the paper or other article.

Another object is to provide a suitable deiector-plate between the infeed and coating rollers for deflecting the article to be coated into contact with the coating-roller.

A further object is to provide suitable mechanism between the coating-roller and outfeed for dedecting the coated article from the coating-roller to the outfeed-roller and for gaging the thickness of the coating upon said article, the latter mechanism cooperating with a suitable guide or pressure bar for forcing the coated surface of the article against the scraper-gage.

A still further object is to provide a suitable stripper mechanism for de'liecting the coated article from the outfeed-roller to a suitable drying belt or conveyer.

One of the essential requirements in machines of this character is to apply the coating evenly and uniformly throughout the whole or any part of the surface of the article to be coated and in such thickness orbody as may be desired or as may be consistent with the Weight or character of the material to which the coating is applied.

\Vith the machines now in use it has been found extremely difficult to coat sheets or continuous strips of paper uniformly throughout the entire surface for the purpose of producing a smooth even surface in the finished haust chamber connected thereto.

ments are designed to overcome these difiy culties, andvto this end the invention consists in the combination, construction, and Parrangement of the parts of a coating-machine, as hereinafterfullydescribed,and pointed out in the claims.

Referringto the drawings, Figure l is a longitudinal vertical sectional view of a portion of a coating-machine embodying my invention. Fig. 2 is a sectional View taken on line 2 2, Fig. l, showing particularly one end of the pneumatic outfe'ed-drum and the air-ex- Fig. 3 is an isometric view of a portion of the scrapergage bar and a series of stripperfingers mounted thereon. Fig. It is a rear View of a portion of one end of the scraper-gage and pressure-bar. Fig. 5 is an isometric View of one of the detached stripper-ingers Similar reference characters indicate corresponding parts in all the views.

In Fig. l Ihave shown a portion of a frame l of a coating-machine, upon which is mounted a suitable bed 2, feeding-rollers 3, a coating-roller 4, a pneumatic outfeeding-drum 5, and a conveyer-belt 6, all of which parts may be of any desired form, size, or construction for facilitating the feed of the material to be coated to and from the coating-roller and drying the same after said articles have been coated. Inasm uch as these parts are believed to be well known to those skilled in the art, it is thought that a further description or illustration is unnecessary, it being understood that the infeed and outfeed rollers or drums are arranged at opposite sides of the coatingrollers and that the conveyer or drying belt 6 is so disposed as to receive the coated articles from the upper face of Jthe outfeedingdrum 5.

The outfeeding-drum 5 is usually hollow for forming an interior air-suction chamber 7and is provided with apertures S, leading from the chamber 7 through the periphery of the drum, said air-chamber 7 being connected to a suit- IOO able exhaust-chamber 9, in which a partial Vacuum is maintained by any desired form of suction or vaeuutnpump.` (Not shown.) A suitable damper or air-cut-off plate 7 is adjustably supported within the chamber 7, whereby the suction of air is only permitted through4 the portion of theapertures 8 between the scraper-gage 12 and deilector plate 1 5,.the suction drawing the coated article against the drum as soon as itleaves the scraper-gage 12 and is neutralized for releasing the coated article just before reaching the delector-plate 15.

vAlthough I have shown a pneumatic outfeed for the coated articles which is adapted to draw the article into engagementwith its ,periphery immediately upon its discharge from the coating-roller and to cut off the suction'or neutralize the inequality of air-pressure in thechamber 7 just before, reaching the point of deflection tothe conveyer-belt, it-

and astripper-bar 15 ,all of which are mounted and arranged as hereinafter described. .The scraper-baril@ may be of any desired material and preferably consists ofA a thin metal bar mountedonthe frame 1 beneath lthe feedrollers 3 and adapted to regulate the thickness of the coating material yupon 'the roller 4 before being applied tothe article being coated. I therefore providemeans, as screws 16, for adjusting the plate or bar 10 toward and awaylfrorn A the periphery of the coating-roller 4,` the forward end ofsaid plate or bar being usually beveled downwardly away from the periphery ofthe vrollerand serves to break any air-bubbles in the coating materialand i to'force the superiiuous coating backwardly lintov the supply-tank, as 17.

This bar'lO is preferably of suflicient length to regulate the thickness throughout the entire length of the coating-roller, and being arranged as above described it is evident that only a predetermined amount of coating material may be conveyed or applied to the surface of the paper to be coated. The deflector-bar 11 may l also be of any desired form or size and usuof the coating-roller as said article is fed forwardly, thereby insuring a perfect contact of the paper or other article with said coatingroller, it being understood that this bar is also of sufficient length to insure a perfect contact of the fullwidth of the article to be coated with the coating-roller. Any desired adjusting means, as 19, may be employed for de fiecting the plate at any desired'angle, and thereby causing more or less lap of the article to be coated upon the coating-roller, and at the same time insuring a perfect contact of said article throughout its ventire width.

The scraper-gage 12 is arranged in proximity to the face of the coating-roller opposite to that of the defiecting-plate 11, or, in other words, between the coating-roller and the outfeed-drum 5, this bar being also formed of. metal andof sufficient length to scrape the entire coated surface transversely for the purpose ot regulating or gaging the thickness of the coating upon the snrfacevof the paper or other article. Inorder to insure a perfect Contact of the coated surface with thescrapergage 12,1 .usually provide the pressure-bar 14, whichis adjustably mounted on the frame and is movable toward and away frointhe edge of the scraper-gage for the purposeof varying the thickness of the coating. This gage 12 is preferably mounted upon a springbolt20 for the purpose of holding the scrapergage in position, said bolt being mounted in brackets 1S, which in turn are secured to a suitable cross-bar form-ing a portion of the framel. The pressurebar 14-is yieldingly supported on said brackets 18 and is forced towardthe gage 1 2 by a spring or springs, as 1S', Figs.v 3 and 4. s

The stripper-fingers 13 are arranged between the coating-roller and scraper-gage 12 and consist of substantially thin pieces of sheetmetal arranged in separated relation to each other, each being provided with Ystuds or pins 2 1, adapted toenter suitable sockets or apertures-in the bar 12 for holding the stripper-fingers in position and permitting their removal independently of each other whenever desired. This construction and arrangement of the stripper-fingers permit any superiiuous material to fall between the 1ingers and into the reservoir 17, these stripperfingers being so arranged as to defiectthe coated paper or other article from the coating-roller 4 toward or into engagement with the lower face of the drum 5, by which the coated paper is taken up by suction through the apertures S and conveyed to the drierbelt previously mentioned. The stripper-iingers 13 are so Varranged relative to the bar 12 as to permit a slight forward-and-backward vmovement and are generally pointed at their forward ends nearest the periphery of the coating-roller and arranged in close proximity to said periphery for insuring the defiection of the coated article from the coating-roller to the conveyer-drum.

The stripper-bar 15 is also mounted on the IOO IIO

frame 1 between the drum 5 and drier-plate 6, and While I have shown this stripper-plate as consisting of a flat bar having its edges adjacent to the upper face of the drum 5 provided with suitable stripper-lingers formed integral therewith it is apparent that, if desired, I may use fingers similar to those mounted on the bar 12, although it will be noted that the fingers 13 engage the coated surface of the article and that the stripperbar 15 is adapted to engage the uncoated surface of said article, and it is therefore unnecessary to provide said bar with stripper-iingers, as this bar may consist of a solid plate, its purpose being more to deflect the paper or other coated article from the conveyer-drum 5 to the drier-belt t', and may be adjustable along the periphery of the conveyer-drum 5,' if desired, in order to deflect the coated paper or other article from the drum at about the same time or just after the vacuum or suction is neutralized in the chamber 7.

The reservoir 17 is arranged to supply the coating to the coating-roller 4, saidcoatingroller having` its lowerface movable in the bodyofy coating material in said reservoir, which material adheres to the 'surface of the coating-roller and is conducted thereby tothe surface of the article to be coated. Any coating material-s uch as varnish, shellac, or any cellulose substance-may be applied to the paper or other article to be coated in the manner above described, and in order to maintain a suitable quantity of the coating material in the reservoir 17 I usually provide a float 22, connected to a valve 23 of a supplypipe 24, whereby when the quantity of the coating material is reduced the valve is opened and discharges through a suitable outlet 25 into the reservoir 17.

In the' operation of my invention lthe articles to be coated are fed along the bed 2 to the feed-rollers 3, from which said article is deflected to the coating-roller 4 and carried thereby to the stripper-fingers 13, which in turn deects the coated article to the conveyer-drum 5. The suction created through the apertures in the peripheral wall of the chamber 7 of said drum draws the paper or other article against the periphery of the drum, whereby it is conveyed to a point in proximity to the deflector plate 15. The vacuum being then neutralized, the coated paper is released and on account of the coated outer surface naturally turns outwardly from the drum and is deflected toward and onto the drying-belt 6 by said deflector-plate 15. 'Prior to this operation the scraper-bar 10 is adjusted to effect the'desired thickness of coating to be applied to the articles, and after leaving the coating-roller the scrapergage 12 and pressure-bar 1l produce an even and smooth surface on the coating preparatory to its being conveyed to and dried upon the belt (S. The operation of my invention will now be readily understood upon reference to the foregoing description and the accompauying drawings, and it will be noted that the various elements of my invention are particularly simple in construction and operation, can be manufactured at a minimum cost, and appliedto any machine.

Having thus described my invention, what I claim, and desire to secure by Letters Iatent, is

1. In a coating-machine, a supply-tank and coating-roller movable therein, in combination with an adjustable deflector plate or'bar for forcing the article to'be coated into contact with the roller.

2. In combination with asupply-tank, coating-roller and means forfeeding the'article to be coated to the upper face of the' coatingroller, an additional roller above the coatingroller for feeding the coated article from the coating-rollerfand stripper-fingers fordei'lecting the coated article from the coatingroller to the latter feeding-roller. i f

3. In combination with a supply-tank, coating-roller and means for feedingthe article to be coated to kthe coating-roller, additional means for feeding the coated article frointhe .coating-roller and a scraper-gage between the coating-roller and latter feeding means for evening the coated surface of the article."

4. In combination with asupply-tank, coating-roller and means for feeding the article to be coated to the coating roller, additional means for feeding the coated article from the coating-'roller and a scraper-gage between the coating-roller and latter feeding means for evening the coatedsurface of the article, and a guide or pressure bar for forcing the coated su rface of the article against the scraper-gage.

5. In combination with a supply-tank, coat- A ing-roller and means for feeding the article to be coated to the coating roller, additional means for feeding the coated article from the coating-roller and a scraper-gage between the coating-roller and latter feeding means for evening the coated surface of the article, and an adjustable guide or pressure bar engaged with the uncoated surface of said article for forcing the coated surface against the scraper.

G. The combination with a coating-roller and feed-rollers arranged to feed the article to and from the coating-roller, a scraper-gage between the coating-roller and outfeed-roller for scraping the coated surface, and stripper- 'fingers between the gage and coating-roller IIO IZO

stripper-fingers adjustably mounted on the scraper-gage for the purpose described.

9. The combination with a coating-roller and feed-rollers arranged to feed the article to and from the coating-roller, a scraper-gage between 'the coating-roller and an outfeedroller for scraping the coated surface, independently-movable stripper-fingers between the gage and coating-roller for the purpose set'forth, and a guide or pressure bar engaging the uncoated surface for forcing the coated surface against the scraper-gage.

10. The combination with a coating-roller and feed-rollers arranged to feed the article to and from the coating-roller, the outfeed-roller being ina plane above the coating-roller, a deflector-plate for forcing the article downwardly from the vinfeed against the coatingroller, and stripper-fingers for deflecting the coated' article upwardly from the coating- `roller to the outfeed.

11. The combination with a coating-roller and feed-rollers arranged to feed the article to and from the coating-roller, the outfeed-roller being in a plane aboveI the coating-roller, a

deflector-plate for forcing the article down,

13. The combination with a tank for the coating material, a coating-roller having its lower portion movable in the tank, feed-rollers arranged to feed the article to and from the coating-roller, a scraper having a beveled edge inclining downwardly away from the coating-roller and arranged to regulate the thickness of the coating on the coating-roller before being applied to the article and to break the air-bubbles in the coating, a' plate or bar for delecting the article downwardly from the infeed to the coating-roller,V and stripper-fingers for defiecting the coated Yarticle upwardly from the coating-roller to the outfeed. Y

14. The combination with a coating-roller and feed-rollers arranged to feed the article to and from the coating-roller, of a drier belt or conveyer to receive the coated article from the outfeed-rolle, and a stripper arranged to deflect the coated article from the latter roller to the belt. 15. A coating-machine comprising a coating-supply tank, means for maintaininga predetermined level of coating material in Said tank, a coating-roller having a portion thereof movable in the coating material of the tank, infeed-rollers for feeding the articles to be coated to the coating-roller, an adjustable scraper-bar arranged to regulate the thickness of the coating adhering to the coatingroller before beingV applied to the article, an adjustable deflector-plate between the infeed and coating rollers for forcing the article into contact with the coating-roller, stripper-iingers for deflecting the coated article from the coating-roller to the outfeed-roller, a scrapergage for smoothing and regulating the thickness of the coating on the article after leaving the stripper-fingers, a drier-belt, and a Fsecond stripper for deflecting the coated article from theA outfeed-roller to the belt.

In witness whereof I have hereunto set my hand this 24th day of June, 1901.

GEORGE A. BREEZ E.

\Vitnesses:

L. G. GREEN, WM. A. JONES. 

